Yamada Ryu, a second year student who attends the prestigious Suzaku Private High School, is a problem child who comes to school late and leaves early, is prone to fighting all over the place, and even nods off in class. One day, he falls down the stairs with the honor student Shiraishi Urara. They faint, and when he wakes up in the infirmary he's turned into her!
I don't know the exact reason such a thing
Ich weiß nicht genau, aus welchem
Grund es geschah, aber …
No sé por qué nos habrá sucedido...
No sé por qué nos habrá 
sucedido algo así.
Non so esattamente
Eu não sei a razão exata para algo assim
Я не знаю истинной причины того,